研究業績

Ryosuke Seki, Yuma Dazai, and Garuda Fujii*, Topology-optimized thermal cloaks for transient heat conduction, International Journal of Heat and Mass Transfer  Vol. 261, p.128561 (2026).

Kyosuke Kuzuo and Garuda Fujii*, RBF-parameterized level-set boundary modeling for accelerating CMA-ES-based topology optimization with box constraint handling, Computer Methods in Applied Mechanics and Engineering Vol. 449, Part B, p.118521 (2026).

Garuda Fujii*, Comparing the algorithms of CMA-ES in level-set-based topology optimization, Tohoku Series of Mathematical Science (accepted).

Kengo Mizukami and Garuda Fujii*, Accelerating CMA-ES-based topology optimization through B-spline parameterized level-set method, Computer Methods in Applied Mechanics and Engineering Vol. 445, p. 118158 (2025).

Seitaro Kato, Kohei Takejima, Zhiqian Song, and Garuda Fujii*, Density-based topology optimization for ITR-free thermal cloaks, International Journal of Heat and Mass Transfer Vol. 242, p. 126834 (2025).

Shin Tanaka and Garuda Fujii*, CMA-ES-based topology optimization accelerated by spectral level-set-boundary modeling, Computer Methods in Applied Mechanics and Engineering Vol. 432, Part A, p. 117331 (2024).

Garuda Fujii*, Topology-optimized source shifter for optical location camouflaging, Optics Express Vol. 31, Issue 22, pp. 37302–37315 (2023).

Garuda Fujii*, Camouflaging the location of a sound source via topology-optimized source-shifter, Journal of Sound and Vibration Vol. 559, p. 117768 (2023).

Garuda Fujii*, Biphysical undetectable concentrators manipulating both heat flux and direct current via topology optimization, Physical Review E Vol. 106, No. 6, p. 065304 (2022).

Kazuma Hirasawa, Iona Nakami, Takumi Ooinoue, Tatsunori Asaoka, and Garuda Fujii*, Experimental demonstration of thermal cloaking metastructures designed by topology optimization, International Journal of Heat and Mass Transfer Vol. 194, p. 123093 (2022).

Garuda Fujii* and Youhei Akimoto, Electromagnetic-acoustic biphysical cloak designed through topology optimization, Optics Express Vol. 30, Issue 4, pp.6090–6106 (2022).

Motoaki Ota and Garuda Fujii*, Mechanical unfeelability concentrator through topology optimization, Applied Physics Letters Vol. 120, Issue 1, p. 011103 (2022).

Garuda Fujii*, Masayuki Takahashi, and Youhei Akimoto, Acoustic cloak designed by topology optimization for acoustic-elastic coupled systems, Applied Physics Letters Vol. 118, Issue 10, p. 101102 (2021).

Tsuyoshi Ueta*, Garuda Fujii and Gen Morimoto, Full-model finite-element analysis for structural color of Tarsiger cyanurus’s feather barbs, Forma Vol. 35, Issue 1, pp. 21–26 (2020).

Garuda Fujii* and Youhei Akimoto, dc electric cloak concentrator via topology optimization, Physical Review E Vol. 102, Issue 3, p. 033308 (2020).

Garuda Fujii* and Youhei Akimoto, Cloaking a concentrator in thermal conduction via topology optimization, International Journal of Heat and Mass Transfer Vol. 159, p. 120082 (2020).

Garuda Fujii* and Youhei Akimoto, Optimizing the structural topology of bifunctional invisible cloak manipulating heat flux and direct current, Applied Physics Letters Vol. 115, Issue 17, p. 174101 (2019).

Garuda Fujii* and Youhei Akimoto, DC carpet cloak designed by topology optimization based on covariance matrix adaptation evolution strategy, Optics Letters Vol. 44, Issue 8, pp. 2057–2060 (2019).

Garuda Fujii* and Youhei Akimoto, Topology-optimized thermal carpet cloak expressed by an immersed-boundary level-set method via a covariance matrix adaptation evolution strategy, International Journal of Heat and Mass Transfer Vol. 137, pp. 1312–1322 (2019).

Garuda Fujii*, Youhei Akimoto, and Masayuki Takahashi, Direct-current electric invisibility through topology optimization, Journal of Applied Physics Vol. 123, Issue 23, pp. 233102 (2018).

高橋 正幸, 秋本 洋平, 藤井 雅留太*, 共分散行列適応進化戦略に基づいた音響クロークのトポロジー最適化, 日本機械学会論文集 Vol.84, No.859, p.17-00590 (2018). 

Garuda Fujii*, Youhei Akimoto, and Masayuki Takahashi, Exploring optimal topology of thermal cloaks by CMA-ES, Applied Physics Letters Vol. 112 Issue 6, p. 061108 (2018).

Garuda Fujii*, Youhei Akimoto, and Masayuki Takahashi, CMA-ES-based structural topology optimization using a level set boundary expression—Application to optical and carpet cloaks, Computer Methods in Applied Mechanics and Engineering Vol. 332, pp. 624–643, (2018).

Garuda Fujii* and Tsuyoshi Ueta, Topology-optimized carpet cloaks based on a level-set boundary expression, Physical Review E Vol. 94, Issue 4, p. 043301 (2016).

Garuda Fujii*, Tsuyoshi Ueta, Mamoru Mizuno, and Masayuki Nakamura, Topology-optimized multiple-disk resonators obtained using level set expression incorporating surface effects, Optics Express Vol. 23, No. 9, pp. 11312–11326 (2015).

Tsuyoshi Ueta*, Garuda Fujii, Gen Morimoto, Kiyoshi Miyamoto, Akinori Kosaku, Takeo Kuriyama and Takahiko Hariyama, Numerical study on the structural color of blue birds by a disordered porous photonic crystal model, Europhysics Letters Vol. 107, No. 3, p. 34004 (2014).

Garuda Fujii*, Tsuyoshi Ueta, and Mamoru Mizuno, Level set-based topology optimization for anti-reflection surface, Applied Physics A Vol. 116, Issue 3, pp. 921–927 (2014).

坂本潤嗣*, 加藤貴幸, 藤井雅留太, 中村正行, 簡便性を備えたマイクロ～ミリオーダーの圧子押込み実験に基づく金属材料の力学特性同定手法の実用性評価—プレス加工への適用による実用性の検証—, 実験力学 Vol. 14, No. 4, pp. 264–270 (2014).

坂本潤嗣*, 藤井雅留太, 中村正行, 簡便性を備えたマイクロ～ミリオーダーの圧子押込み実験に基づく金属材料の力学特性同定手法の検討, 実験力学 Vol. 14, No. 4, pp. 257–263 (2014).

Garuda Fujii*, Hayato Watanabe, Takayuki Yamada, Tsuyoshi Ueta, and Mamoru Mizuno, Level set based topology optimization for optical cloaks, Applied Physics Letters Vol. 102, Issue 25, p. 251106 (2013).

Takayuki Yamada*, Hayato Watanabe, Garuda Fujii, and Toshiro Matsumoto, Topology optimization for a dielectric optical cloak based on an exact level set approach, IEEE Transactions on Magnetics Vol. 49, Issue 5, pp. 2073–2076 (2013).

Garuda Fujii*, Toshiro Matsumoto, Toru Takahashi, and Tsuyoshi Ueta, Finite-element analysis of lasing modes within photonic random media, Journal of Physics B: Atomic, Molecular and Optical Physics Vol. 45, No. 8, p. 085404 (2012).

Garuda Fujii*, Toshiro Matsumoto, Toru Takahashi, and Tsuyoshi Ueta, Study on transition from photonic-crystal laser to random laser, Optics Express Vol. 20, No. 7, pp. 7300–7315 (2012).

Garuda Fujii*, Toshiro Matsumoto, Toru Takahashi, and Tsuyoshi Ueta, A study on the effect of filling factor for laser action in dielectric random media, Applied Physics A Vol. 107, Issue 1, pp. 35–42 (2012).

藤井雅留太*, 松本敏郎, 高橋徹, 山田崇恭, 植田毅, 誘電体ランダム配置系におけるレーザ発振の系内電場強度依存性に関する研究, 電気学会論文誌 C Vol. 132, No. 1, pp. 89–95 (2012).

藤井雅留太*, 松田仁, 松本敏郎, 高橋徹, 山田崇恭, 植田毅, 不規則にdangling bondを含む誘電体ハニカム型ボンド構造内でのレーザ発振現象の有限要素解析, 計算数理工学論文集  Vol. 11, pp. 89–94 (2011).

藤井雅留太*, 松本敏郎, 高橋徹, 植田毅, 誘電体ランダム配置系におけるレーザ発振の有限要素解析, 計算数理工学論文集  Vol. 10, pp. 117–122 (2010).

Garuda Fujii*, Roadmap on thermodynamics and thermal metamaterials (contributed section: “Topology optimization approaches for thermal cloaks/metamaterials”), Frontiers of Physics Vol. 20, Issue 6, p.065500.

藤井雅留太*, メタデバイスの機能創発とトポロジー最適化, 精密工学会誌 Vol. 86(6) pp.395–399 (2020).

藤井雅留太*, 松本敏郎, 高橋徹, 植田毅, ランダムレーザーの低閾値化に関する研究, 計算数理工学レビュー Vol.2012-1, pp. 1–11 (2012).

Garuda Fujii*, Cloaking an object from both electromagnetic and acoustic waves via topology optimization, Proceedings of the 15th International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials' 2021), pp. 126-128 (2021).

Garuda Fujii* and Masayuki Nakamura, Topology optimized design of carpet cloaks based on a level set approach, Proceedings of SPIE 9630, Optical Systems Design 2015: Computational Optics, 96300U (2015).

Garuda Fujii*, Tsuyoshi Ueta, Gen Morimoto, Masayuki Nakamura, Numerical analysis for reflectance properties of bird-feather fibers, Proceedings of the 8th International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials' 2014), pp. 115-117 (2014).

Garuda Fujii*, Tsuyoshi Ueta, Mamoru Mizuno, and Masayuki Nakamura, Level set-based topology optimization for whispering gallery mode resonator circuits incorporating surface effects, Proceedings of the 5th International Conference on Metamaterials, Photonic Crystals and Plasmonics, pp.182-186 (2014).

Tsuyoshi Ueta*, Garuda Fujii, Gen Morimoto, Kiyoshi Miyamoto, Akinori Kosaku, Numerical study on the structural color of blue birds by a disordered porous photonic crystal model, Proceedings of the 5th International Conference on Metamaterials, Photonic Crystals and Plasmonics, pp.153-156 (2014).

Garuda Fujii*, Tsuyoshi Ueta, and Mamoru Mizuno, Finite element analysis for laser action in random porous media, Proceedings of the 7th International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials' 2013), pp. 334-336 (2013).

Garuda Fujii*, Hayato Watanabe, Takayuki Yamada, Tsuyoshi Ueta, Mamoru Mizuno, Level set based topology optimization for optical cloaks containing a large scattering object, Proceedings of the 10th World Congress on Structural and Multidisciplinary Optimization (WCSMO10), p.5283 (6 pages) (2013).

Mamoru Mizuno*, Atsushi Ogawa, Garuda Fujii, Variation in thermal conductivity of CFRP plates due to impact damage, Proceedings of 13th International Conference on Fracture (ICF-13) Vol. 5 pp. 3905–3910 (2013).

Garuda Fujii*, Tsuyoshi Ueta, and Mamoru Mizuno, Finite element analyses for random laser action in metallic disordered structures, Proceedings of the 6th International Congress on Artificial Materials for Novel Wave Phenomena (Metamaterials' 2012), pp. 758-760 (2012).

Shinya Harada*, Akihisa Suzuki, Toru Takahashi,Takayuki Yamada, Garuda Fujii, and Toshiro Matsumoto, A level set-based topology optimization method for three-dimensional acoustic problems using fast multipole boundary element method, Proceedings of the 9th World Congress on Structural and Multidisciplinary Optimization (WCSMO9), p.059 (7 pages) (2011).

Garuda Fujii*, Toshiro Matsumoto, Toru Takahashi and Tsuyoshi Ueta, A study on optical properties of photonic crystals consisting of hollow rods, IOP Conference Series: Materials Science and Engineering Vol. 10, p. 012072 (10 pages) (2010).